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Alecsey [184]
3 years ago
11

Summation notation of 2+4+6+8+10

Mathematics
1 answer:
Veronika [31]3 years ago
4 0
The answer to this question is 30.
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PLEASE HELP!! Compare & Contrast how Completing the Square is used to Convert a quadratic function to vertex form with how i
Likurg_2 [28]

Answer:

Step-by-step explanation:

Given a general quadratic formula given as ax²bx+c = 0

To generate the general formula to solve the quadratic equation, we can use the completing the square method as shown;

Step 1:

Bringing c to the other side

ax²+bx = -c

Dividing through by coefficient of x² which is 'a' will give:

x²+(b/a)x = -c/a

- Completing the square at the left hand side of the equation by adding the square of half the coefficient x i.e (b/2a)² and adding it to both sides of the equation we have:

x²+(b/a)x+(b/2a)² = -c/a+(b/2a)²

(x+b/2a)² = -c/a+(b/2a)²

(x+b/2a)² = -c/a + b²/4a²

- Taking the square root of both sides

√(x+b/2a)² = ±√-c/a + b²/√4a²

x+b/2a = ±√(-4ac+b²)/√4a²

x+b/2a =±√b²-4ac/2a

- Taking b/2a to the other side

x = -b/2a±√√b²-4ac/2a

Taking the LCM:

x = {-b±√b²-4ac}/2a

This gives the vertex form with how it is used to Solve a quadratic equation.

7 0
3 years ago
Solve the inequality $-4x > -24.$ Give your answer in interval notation.
Scorpion4ik [409]

Answer:

x>6 that's means x is greater than 6

6 0
3 years ago
19.97 - 5.97+<br> 2.3 <br> it’s multi step equations
expeople1 [14]

Answer:

The answer would be 16.3

4 0
3 years ago
-100 - ___= 65<br> A. 35<br> B. 65<br> C. -35<br> D. -165
Softa [21]

Answer:

D

Step-by-step explanation:

If you subtract -165 from -100 you will get 65.

4 0
3 years ago
A rectangle has a width of nine units in the length of 40 units what is the length of a diagonal
shepuryov [24]

Answer:

Applying the Pythagorean theorem, the diagonal is calculated by:

D = sqrt(40^2 + 9^2) = 41

Hope this helps!

:)

5 0
3 years ago
Read 2 more answers
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